Advertising projection



Feb. 8, 1944. w; U UE 2,341,223

ADVERTI SING PROJECTION Filed Oct. 11, 1940 Patented Feb. 8, 1944 UNITEDSTATES PATENT OFFICE ADVERTISING rnoamirion Application October 11,1940, Serial No. 360,842 In Great Britain Octobcrll, 1939 5 Claims.

Apparatus, accordingto my invention, comprises or includes .a box orcasing wherein are disposed an electric filament bulb or bulbs or othersuitable means of illumination, a lens p0- sitioned in front of saidilluminating source, and a glass prism disposed in front of said lensand whereby va coloured effect is imparted to the image when. projected,via an opening in said boX or casing, onto a screen or other surface.

Means may be provided whereby a wordor words or the like is or areincluded in the coloured image.

In one construction, the apparatus comprises or includes a confiningcasing or cabinet of any suitable shape or configuration (or said casingmay form part of a shop window) and within said casing, say at a closedrear end, is mounted an electric light bulb behindwhich .is arranged aconcave reflector. Also disposed in said casing and spaced in frontofthe lamp bulb is a magnifying lens of double-convex type and disposedbetween said bulb and lens is a stencil plate formed to produce-thenotice or sign to be exhibited, so that when the bulb is illuminated anenlarged or magnified image in spectrum colours of the contents of thestencil plate appears on the light being projected onto a screen orother convenient surface. There is thus produced a variously colouredimage having a decorative or ornamental effect and this without the.

use of coloured bulbs, coloured glass, and'suchlike devices customarilyutilised for producing colour effect.

By the employment of said lens the words,

objects, or the like, formed by the stencil plate appear clear anddistinct in the image.

Alternatively, in lieu of a stencil plate, the

the bulb or bulbs is or are illuminated and the light projected throughthe lens and prism onto v a screen or other surface.

When used as a shop window sign said stencil piate will be fitted inposition in reverse manner so that the image if projected onto atranslucent screen will read correctly to passers-by.

Said prism may be adjustably carried as by source.

means of rods or pins projecting from its ends and suitably mounted. Theprism may be ro-' tatable by hand ,or it may be operatively connectedwith an electric motor or otherpower By revolving the prism changesinthe colours .and shape of the image maybe effected.

I will further describe myinvention with the aid'of the accompanyingsheet of explanatory drawings which illustrate, byway of example only,one mode of carrying "same into efiect.

In said drawing:

Fig. 1 is aside-sectional elevation,

Fig. 2 --a cross-section takenas on line A-A, Fig. 1, and

Fig. 3 a further cross-section taken as on line B -B, Fig. 1.

In the several views, like characters of reference denote like orequivalent parts wherever they occur.

Referringv to .the drawing, a, a represent complementaryhalf .portionsof a ,metal casing of conical or tapering configuration, and within theclosedrear .(larger) .end whereof is fitteda holder the other side ofcoverv e is formed with a spring in front of said lens is a glass prism.Fitted.

clip member e arranged to engage over a retain ing projection-gen;casing 11., a Cover 6 is also provided with an aperture for the passageof electricity supply flex 17 connected to holder 1) ,for bulb c. Saidcomplementary casing parts a, a are hinged together at a. and arecapable.

of being openedwhen the rear covere is lowered:

thesecasing parts-are also maintained closed a spring clip member asimilarly to the: coverv clip e before described. Y

Secured in a locating ring h and spaced'in front of bulb -cis a doubleconvex lens and adjustably fitted around the open front end 9 of casinga, a is-a sleeve carrying cheek mem bers k which act as bearingsfor'pins o, o. ,-s e.-.

curedtoa glass prism lsituated in front of t e opening a of the casing.

Upon illumination of said electricbulbc the light therefrom passesthroughgand is :concen: trat by s dlensi; h lightb a the 'ina fie by wayasi open a a an h q ehth prism Z, being dissociated ;into;- spectrumrays which. alter oie t o to a isu t ez c een .Q other su.ria.ce.whic.ma be'yfi ed; r mamb ordsu hiects between the bulb c and lens 9' astencil plate or screen m which is located in a ring 21. and formsletters or other images as desired.

Said holder 1) carrying .1 Idtha ztheimaee sha a so how the i e. there'i i t .r pos e,d 1

In lieu of a stencil plate, however, the filament or filaments of one ormore electric light bulbs or tubes disposed in the casing, may be soshaped or configurated as to effect the formation of an image ofrequired design, or the filaments of a plurality of bulbs or tubes, orthe filament of a single bulb or tube may be so arranged as to make aword or other image when the bulb or bulbs or tubes is or areilluminated and the light is projected via the lens j and prism lthroughthe apparatus onto a screen or other surface as hereinbefore described.The voltage of the current supply may, if desired, be reduced by meansof a transformer.

In order to provide for variation of colour effects, a prism carryingspindle o is provided with a handle o whereby the prism may be revolved,spindle being fitted with a wing-nut o for locking the prism in anyrequired position of adjustment. The prism-carrying sleeve is is alsorevolubly mounted on the front end of casing a, a and is fitted with athumb screw p to maintain it in required position of adjustment: thusprism I can be rotated about the axis 0 and also-when the sleeve 70 withcheeks k is turned--about the iongitudinal axis of easing a, (1

To the underside of casing a, a is aflixed a projection q which ispivoted on a pin 1' carried by a U-shaped bracket s having a spindle srotatably and slidably mounted in a vertical sleeve t of a stand t: thusthe casing may be pivoted about the horizontal axis 1' to any requiredinclination, rotated about the vertical axis 8 or raised or loweredrelative to thestand sleeve t for the purpose of effecting the requiredadjustment preparatory to light projection through casing a, a A thumbscrew it is fitted at the top of sleeve t and a wing nut 12 on pin r tomaintain the parts rigid when adjustment has been effected.

The apparatus may also be used for fioodlighting purposes or for use intheatres, cinemas, and the like.

Said stencil plate m may be readily removed and replaced by another whenit is desired to change the sign or notice, and provision may be madefor focusing adjustment of the stencil m and lens 7' within the casing.

In a further modification, the reflector d itself may be utilized toproduce the image; for instance, the interior of the reflector may carrynon-reflecting letters etcetera of the sign,- or conversely, the lettersmay be reflective and the remaining parts of the reflector interiornonreflective.

It will be obvious that various alterations or modifications may be madeto the present apparatus without departure from the spirit and scope ofmy invention; for instance, the reflector may be made in various shapesor sizes in accordance with the designs or other matter to be projectedfor display: further, a moving presentation may be effected by manual ormechanical rotation of thereflector in lieu of or in addition toadjustment of the colour-producing medium.

What I claim as my invention and desire to secure by Letters Patent is:

1. Apparatus of the character described, comprising 'a casing consistingof complementary half portions, a cover mounted over oneend of thecasing, being fitted over said half portions to aid in holding themclosed, a sleeve fitted upon said half portions at the other end of thecasing also aiding in holding said half portions closed, cheek membersprojecting forwardly of the sleeve and providing a bearing crosswise ofthe axis of the casing, a glass prism axially supported by said cheekmembers across the adjacent end of the casing, and means contained bythe casing directing a light beam onto the prism for projection.

\ through the prism and away from the casing as means, a sleeve movablysecured around the end of said frame or casing opposite to said casing.

cover, said cover and sleeve forming a means to assist in holding theframe or casing sectionsv closed cheek members fixed to and projectingforwardly of said sleeve and providing a bearing transverse the axis ofthe casing, a glass prism axially supported by said cheek members acrossthe adjacent end of the casing adapted to dissociate light passedthrough said light concentrating means in the casing into spectrum rays.

3. Apparatus of the character described, comprising a casing consistingof complementary half portions,-a cover mounted over one end of thecasing, being fitted over said half portions to aid in holding themclosed, a sleeve fitted upon said half portions at the other end of thecasing, also aiding in holding said half portions closed, means Iproviding a bearing crosswise of the axis of the casing, a glass prismaxially and revolubly supported across the open end of the casing, meanscontained by the casing directing a light beam onto the lensfor'projection through the prism and away from the casing as spectrumrays, and

advertising indicia ituated between the source of light and the lens.

4. Apparatus of the character described comprising a longitudinallydivided openable and closable frame or casing formed of complementalsections, removable supports at the ends of the casing engaging thesections to assist in holding them closed, illuminating and reflectingmeans carried by one of said supports, a glass prism axially andrevolubly supported on the casing by the other support, alens in thecasing between i the illuminating and reflecting means and the prism,and advertising indicia in the casing between the lens and theilluminating and reflecting means.-

'5. Apparatus of the character described, comprising an openable andclosable casing consisting of complementary sections, a cover mounted atone end of the casing and oversaid casing sections to aid in holdingthem closed, a sleeve fitted upon said casing sections at the other endof the casing, also aiding in holding said sections closed, meansproviding a bearing crosswise of the axis of the casing, a glass prismaxially and revolubly supported thereby across the open end of thecasing, means contained by the casing directing alight beam onto thelens for projection through the prism and away from the casing asspectrum rays, and advertising indicia situated between the sources oflight and the lens.

WILLIAMLILLIE.

